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Gearbox Pumps

Industrial Duty Gearbox-Driven Pumps
Photo of Gearbox Pumps

Cat Pumps gearbox pumps are direct-drive high-pressure pumps that can be easily mounted on standard gas or diesel engines up to 24 horsepower. The gearbox drive has a 2 to 1 ratio allowing the pump to run at half the speed of the engine. This configuration provides a compact assembly without running the pump at high engine RPM. The gearbox is completely sealed, offering protection against rain, dust, and humidity. Cat Pumps gearbox pumps are #1 in commercial-duty pressure washers due to superior product life and ability to perform well in continuous duty use.

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Direct Drive, Gas Engine / Brass
Model Max GPM Max LPM Max PSI Max BAR RPM Shaft
740G1 2.80 10.60 5000 345 1700/3465 1"
3CP1120G 3.50 13.20 2200 152 1420/3600 3/4"
760G1 3.50 13.20 5000 345 1700/3465 1"
5CP3160CSSG1 4.00 15.10 3500 241 1645/3320 1"
45G1 4.50 17.00 3500 241 1645/3353 1"
5CP3120CSSG1 4.50 17.00 3500 241 1645/3353 1"
60G1 4.50 17.00 4000 276 1690/3450 1"
60G118 4.50 17.00 4000 276 1690/3450 1 1/8"
700G1 4.50 17.00 5000 345 1700/3465 1"
5CP3150CSSG1 5.00 18.90 3000 207 1700/3450 1"
5CP5135CSSG1 5.80 22.00 3500 241 1700/3450 1"
5CP5140CSSG1 6.20 23.60 3000 207 1690/3450 1"
5CP5140CSSG118 6.20 23.60 3000 207 1690/3450 1 1/8"
5CP6120CSSG1 7.20 28.00 1500 103 1700/3450 1"
56G1 8.00 30.30 2500 172 1760/3600 1"
56G118 8.00 30.30 2500 172 1760/3600 1 1/8"
5CP6190G1 8.70 32.90 1200 83 1570/3200 1"
7CP6110CSG1 10.00 37.90 2000 138 1667/3400 1"
7CP6170G1 12.00 45.40 1800 124 1600/3264 1"
Direct Drive, Gas Engine / 316 Stainless Steel
Model Max GPM Max LPM Max PSI Max BAR RPM Shaft
3CP1241G 3.00 11.40 2000 138 1410/3600 3/4"
3CP1211G 3.80 14.40 1500 103 1330/3400 3/4"
341G1 4.00 15.10 2000 138 1725/3515 1"
5CPQ6241CSG1 4.00 15.10 2000 138 1760/3600 1"
781G1 4.50 17.00 5000 345 1700 1"
351G1 5.00 18.90 1500 103 1725 1"
5CPQ6251G1 5.00 19.00 2000 138 1760 1"
5CPQ6221G1 7.40 28.00 1200 83 1760 1"
7CP6111CSG1 10.00 37.90 2000 138 1667 1"